I am trying to debug why winbindd fails to authenticate using info from a
ADS server where signing is enabled.

Here are the symptom of the problem:

How to reproduce
================
1. Join the domain ABC
2. Run net use * \\<IP of the server>\share1 /u:ABC/user1 user1_password from a Windows
(2k XP or 2k3 client)
3. Notice this fails
4. Then Run net use * \\<Name of server>\share1 /u:ABC/user1 user1_password
5. Notice that this operation succeeds.

I have attached log.winbindd

I tested Samba 3-0-7 and the problem does not exist in 3.0.7. I have attached both winbindd
logs.